Apparatus for treating slag



(No Modell) M; w. I'LES, APPARATUS FOR TREATING SLAG.

- No. 505,552; Patented Sept. '26, 1893.

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UNIT D STATES PATENT. OFFICE.

MALVERN \V. IL 15, OF DENVER, COLORAD APPARATUS FOR TREATING SLAG.,

SPECIFICATION forming part of Letters Patent N 0. 505,552, dated September 26, 1893. Application filed February 21,1893. Serial No. 463,210. (No model.)

To all whom, it 11m concern.-

Be it known thatl, MALVERN W. ILEs, a citizen of the United States, residing at Denver, in the county of Arapahoe in the State of Colorado, have invented a certain new and usefnl Improvement in Apparatus for reating Slag to Recover Valuable .lletalliferous larticles, of which the following is a true and exact description, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to apparatus for treating slag and consists in an apparatus whereby the molten slag is granulated and the heavier metallifcrousparticles separated from the lighter worthless granules in a simple and inexpensive manner.

Generally speaking my invention consists in combining with means for granulating slag a channel forconducting-away thcsla-grmixmlwith Watcrand providing meansin said channel for catching and retaining the heavier matte containing particles; preferably Itorm the channel with branches and provide means for shutting 01f a branch at will so as to facilitato the removal of the collected metallifcrous granules.

The nature of my improvements will be best understood as described in connection with the drawings in which they are illustrated, and in which- Figure 1 is an elevation of an apparatus designed to embody my invention. Fig. :3 is a plan of the channel showing the branches. Fig. 3 is a plan of the slag trough, and Fig. 4; a detail of the channel (i. I

A represents a metallurgic furnace having a slag spent a.

li, represents a mattopot into which mixed slag and matte is drawn from the furnace A and from which the matte as it accumulates may be drawn by the matte tap I) while the slag runs from the slag spout ii. A second settling pot O with like matte tap c and slag spout 0 may be provided.

it, represents a water pipe ending in a nozzle i which may be slightly flattened if desired and which is adapted to conduct a st ream of water into the water chute l) and directly under the slag spout r". This chute l) is rather steeply inclined at an angle of about thirty degrees or l'orty degrees and empties into a channel G which is nearly horizontal. 'lhe chute l) is preferably made of cast iron and may 3. The channelis made of heavy planking and has two branches G and G'; and in the channel G where the two channels G and G" branch off is arranged a gate g, by which a current'in the channel G may be turned into either of the branches G and G as desired. In the branch channels are arranged ritiles h preferably secured upon a false floor ll of iron.

The operation is as followsr Slag flows from thelelag spout a of the furnace A and the matte'which accompanies it is allowed to subside in the settling pot B and the impoverished slag where the same process is repeated. The slag in the second pot C still contains howovcr, valuable matte and metalliferous particles which it is desirable to save. The melted slag flows, preferably in a thin stream, into the water jet issuing from the nozzle E and by admixture with the cold water is broken up and granulated. Passing along with the current of water into one of the branches G, the heavier ticles are separated by the well known action of rililes and are detained behind in the channols while the slag passes along with the water current and is discharged at the lowerend G ot' the channel where it may undergo any proper treatment to accomplish a further scparation of the motallii'erous particles if desired. \Vhen a suflicient quantity of metah lil'erous particles is collected in the channel G the gates may be shifted, turning the cu.rrent into the other branch channel G" and the collected particles removed.

While two settling posts are shown in which much of the. matte is removed from the slag by subsidence, one may be sufiieient.

While lprefer to arrange the channel G with branches it is evident that I may also use a straight channel G without branching and form the ritlles in this channel.

'lwo channels G and G are shown, but it is evident that any number that may be convenient may be used, and the gate constructed to turn the .rurrent of water in channel G into any branch or branches desired.

ltitlle bars as shown are deemed the most be funnel shaped as shown in Fig,

flows into a second settling pot.

granules containingmctallio parconvenient means of partially arresting the current and of catching the heavier metalliferons particles as they are borne down with the current, but boxes sunk in the floor shown in dotted lines at f orcriss-eross bars extending alternately from either side as shown at 'or any other like means may be used as preferre The current of water I prefertouse issueh as would be obtained by a head of twenty or thirty feet, but this may be modified aceording to the nature of the material to be separated and the size of the slag stream.

Having now described my invention, what Iclann as new, and desire to secure by Letters Patent, is-

granulated slag and water and havingtwo or more branches a gate in the channel whereby the water and slag can be directed into different branches at. will and rifile bars in the level channel branches forarresting the metalliferous particles in the current of water.

3. An apparatus for treating, slag consisting ofa slag spent a steeply inclined Water channel into which the slag spout leads, a second channel having branches and providedwith ril'iie bars in said branches to arrest the metallifcrous particles in the water current.

4. An apparatus for treating slag consisting of a slag spout opening over asteeplyinclined water channel a second and nearly horizontal channel having" branches,a gate to direct the current of water and slag inlo any branch desired and rillles in the branches to arrest themetalliferous particles carried by the water current. I

MALVERN \V. ILES.

Witnesses:

JOHN S. WILLIAMS, JonN ML WALKER. 

